M7
SERIES
Thermal Printer Service Manua
l
45
45
5.2 Mechanism Fine Adjustment to Avoid Ribbon Wrinkles
This printer has been fully tested before delivery. There should not be ribbon wrinkle presented on
the printed media for general-purpose applications. Ribbon wrinkle is related to the media
thickness, print head pressure, balance, ribbon film characteristics, print darkness setting…etc. In
case of ribbon wrinkle, follow the instructions below to adjust the printer.
Adjustable
Printer
Parts
Symptom
1. Wrinkle (missing print) occurs from lower
left to upper right direction
2. Wrinkle (missing print) occurs from lower
right to upper left direction
Wrinkle
Example
Print head pressure
adjustment knob
Z-axis mechanism
adjustment knob
Feed direction
Ribbon guide plate
